help me trigonometry

[eager frost]

I believe you left out something, because this can't be solved

[bold widget]

is this supposed to be a rectangle

[low drift]

I don't think so

just a trapezoid with 2 right angles

wait nvm I think I just proved it's a rectangle

[bold widget]

there's not enough information there to prove it's a rectangle

maybe there's enough information to find the area of the triangle, though

in which case you can assume it's a rectangle
if all triangles have the same area choose the easiest one

though that strategy is a bit dependent on the problem being right

[low drift]

Idk I tried doing smth I feel like there's a flaw somewhere

Can I draw that dotted line perpendicular to ED and declare that it is parallel to BE

[bold widget]

angle BCA is not guaranteed to be 68 deg

that might be the issue

[low drift]

if angles B, E and D are all 90 deg then angle C must be 90 deg

[tribal basin]

didn't mention angle B

[low drift]

yea Ik, I tried to prove angle B was 90 deg by drawing a parallel line

[low drift]

Is this valid?

[tribal basin]

Like an assumption?

[low drift]

yeah I guess

[tribal basin]

I see